.cf::after{
    content: "";
    display: block;
    clear: both;
}
.top{
    width: 100%;
    height: 48px;
    border-bottom: 1px solid #ececec;
    display: flex;
    justify-content: space-between;
}

.zhong{
    color: #000;
    text-align: center;
    line-height: 48px;
    font-size: 26px;
}
.left img{
    display: block;
    height: 20px;
    margin-top: 14px;
    margin-left: 14px;
}
.right img{
    display: block;
    height: 20px;
    margin-top: 14px;
    margin-right: 14px;
}
.zhuce{
    margin-top: 85px;
}
.shuru{
    width: 364px;
    margin: auto;
    overflow: hidden;
}
.shuru input{
    display: block;
    width: 364px;
    height: 52px;
    line-height: 52px;
    padding: 0;
    margin: 0;
    border: 0;
    border-bottom: 1px solid #ececec;
    margin: auto;
    outline: none;
}
.denglu{
    width: 364px;
    margin: 0 auto;
    overflow: hidden;
    margin-top: 26px;
}
.denglu a{
    float: right;
    font-size: 17px;
    color: #fc6e51;
    text-decoration: none;
    margin-bottom: 5px;
}
.btn{
    color: #ffffff;
    text-align: center;
    height: 57px;
    line-height: 57px;
    font-size: 20px;
    width: 364px;
    border-radius: 4px;
    margin: auto;
    margin-top: 5px;
    background: #fc6e51;
    cursor: pointer;
}